6vwk

==E. coli ATP Synthase ADP Sub-state 3A Fo Focussed==

<StructureSection load='6vwk' size='340' side='right'caption='[[6vwk]], [[Resolution|resolution]] 3.10&Aring;' scene=''>

<table><tr><td colspan='2'>[[6vwk]] is a 13 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_coli"_migula_1895 "bacillus coli" migula 1895]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6VWK OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=6VWK FirstGlance]. <br>

</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">atpE, ECJG_03465 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 "Bacillus coli" Migula 1895]), atpf ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 "Bacillus coli" Migula 1895]), atpB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 "Bacillus coli" Migula 1895])</td></tr>

<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=6vwk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6vwk OCA], [http://pdbe.org/6vwk PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6vwk RCSB], [http://www.ebi.ac.uk/pdbsum/6vwk PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6vwk ProSAT]</span></td></tr>

== Function ==

[[http://www.uniprot.org/uniprot/F4TL55_ECOLX F4TL55_ECOLX]] F(1)F(0) ATP synthase produces ATP from ADP in the presence of a proton or sodium gradient. F-type ATPases consist of two structural domains, F(1) containing the extramembraneous catalytic core and F(0) containing the membrane proton channel, linked together by a central stalk and a peripheral stalk. During catalysis, ATP synthesis in the catalytic domain of F(1) is coupled via a rotary mechanism of the central stalk subunits to proton translocation.[HAMAP-Rule:MF_01396] Key component of the F(0) channel; it plays a direct role in translocation across the membrane. A homomeric c-ring of between 10-14 subunits forms the central stalk rotor element with the F(1) delta and epsilon subunits.[HAMAP-Rule:MF_01396] [[http://www.uniprot.org/uniprot/C3SL77_ECOLX C3SL77_ECOLX]] Key component of the proton channel; it plays a direct role in the translocation of protons across the membrane.[HAMAP-Rule:MF_01393][RuleBase:RU000483] [[http://www.uniprot.org/uniprot/D6IFY0_ECOLX D6IFY0_ECOLX]] Component of the F(0) channel, it forms part of the peripheral stalk, linking F(1) to F(0).[HAMAP-Rule:MF_01398][SAAS:SAAS00535352] F(1)F(0) ATP synthase produces ATP from ADP in the presence of a proton or sodium gradient. F-type ATPases consist of two structural domains, F(1) containing the extramembraneous catalytic core and F(0) containing the membrane proton channel, linked together by a central stalk and a peripheral stalk. During catalysis, ATP synthesis in the catalytic domain of F(1) is coupled via a rotary mechanism of the central stalk subunits to proton translocation.[HAMAP-Rule:MF_01398][SAAS:SAAS00002149]

<div style="background-color:#fffaf0;">

== Publication Abstract from PubMed ==

F1Fo ATP synthase functions as a biological rotary generator that makes a major contribution to cellular energy production. It comprises two molecular motors coupled together by a central and a peripheral stalk. Proton flow through the Fo motor generates rotation of the central stalk, inducing conformational changes in the F1 motor that catalyzes ATP production. Here we present nine cryo-EM structures of E. coli ATP synthase to 3.1-3.4 A resolution, in four discrete rotational sub-states, which provide a comprehensive structural model for this widely studied bacterial molecular machine. We observe torsional flexing of the entire complex and a rotational sub-step of Fo associated with long-range conformational changes that indicates how this flexibility accommodates the mismatch between the 3- and 10-fold symmetries of the F1 and Fo motors. We also identify density likely corresponding to lipid molecules that may contribute to the rotor/stator interaction within the Fo motor.

 

<div class="pdbe-citations 6vwk" style="background-color:#fffaf0;"></div>

== References ==

[[Category: Bacillus coli migula 1895]]

[[Category: Sobti, M]]

[[Category: Membrane protein]]